/*
 * Copyright (C) 2014 Sony Computer Entertainment Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY SONY COMPUTER ENTERTAINMENT INC. ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL SONY COMPUTER ENTERTAINMENT INC.
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef MemcpyThread_h
#define MemcpyThread_h

#include <stdint.h>
#include <wtf/Noncopyable.h>
#include <wtf/Threading.h>

namespace WebCore {

class MemcpyThread {
    WTF_MAKE_NONCOPYABLE(MemcpyThread);
public:
    struct Argument {
        void* src;
        void* dest;
        uint32_t size;

        Argument() : src(0), dest(0) { }
        bool isNull() { return (!src || !dest); }
        void clear() { src = 0; dest = 0; size = 0; }
    };
    
    MemcpyThread(const char* threadName);
    void push(Argument&);
    void wait();

private:
    MemcpyThread();
    void run();
    static void run(void* argument);

    Argument m_arg;
    Mutex m_mutex;
    ThreadCondition m_cond;
    ThreadIdentifier m_threadId;
};

} // namespace WebCore

#endif // MemcpyThread_h
